/*
 * Copyright (C) 2024 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package retrofit2;

import static java.util.Arrays.asList;
import static java.util.Collections.emptyList;
import static java.util.Collections.singletonList;

import android.annotation.TargetApi;
import java.util.List;
import java.util.concurrent.Executor;
import javax.annotation.Nullable;

class BuiltInFactories {
  List<? extends CallAdapter.Factory> createDefaultCallAdapterFactories(
      @Nullable Executor callbackExecutor) {
    return singletonList(new DefaultCallAdapterFactory(callbackExecutor));
  }

  List<? extends Converter.Factory> createDefaultConverterFactories() {
    return emptyList();
  }

  @TargetApi(24)
  static final class Java8 extends BuiltInFactories {
    @Override
    List<? extends CallAdapter.Factory> createDefaultCallAdapterFactories(
        @Nullable Executor callbackExecutor) {
      return asList(
          new CompletableFutureCallAdapterFactory(),
          new DefaultCallAdapterFactory(callbackExecutor));
    }

    @Override
    List<? extends Converter.Factory> createDefaultConverterFactories() {
      return singletonList(new OptionalConverterFactory());
    }
  }
}
